Where does the quote "I never saw a pessimistic general win a battle" come from?
I'm not a poetry expert, but from what I remember of him, it didn't sound like something he would say. I googled just the quote and it appears that Eisenhower said it. However, if you google the quote plus "E.E. Cummings" you get multiple hits attributing the quote to him.
The friend who posted it even posted a picture of the quote in a book attributing it to Cummings.